You're welcome LouKout - am glad someone else was decent enough to let your child have a turn on the swing. Am so sorry that the same thing happened to you NoSherryForMe - it's weird how many people seem to think wheelchair means "it's fine to shove past". Ugh.
My Brownies are, as a Unit, really good at self-regulating sharing & turn-taking. Any that aren't naturally so good are either peer-pressured into it or will be told by Leaders that they need to share & how & why to do it.
At the Museum of Childhood in Bethnal Green there are two rocking horses. We arrived & there was a girl of around 11 on one with a toddler sibling. By the time a dozen Brownies had had 30 seconds on the other horse each, she was still there. We had ours try to count their gallops & name the horse each time to make it race & seem less harsh, but not only was the older girl big enough to know that such horse-hoggery was Not On, the girls' Responsible Adults were sitting & watching all this. A wee boy of about 4 was wanting a turn when we were about 2/3 through & his mummy quite loudly said she'd absolutely wait as we were taking short turns & it was good for him to learn about sharing. Rather a contrast to the man, who, on a previous trip, tried to knock one of my Brownies out of the way & put his child on the horse because he didn't want to wait. It wasn't fair to expect him to wait "for all these many children". We had 8 Brownies at the horses in total, half of whom had had their turns. So it's not as if I'd a whole Brownie Unit taking the things over! We stepped off when I refused to let him queue jump...
Brownies are all well-trained on Letting People Of Trains/Tubes/Buses Before We Get On & are also brilliant at getting into single file - on the right - on escalators then moving back into pairs in croc & clearing out of the way. It's amazing how many people - of all ages & both sexes - will barge into & through a tight-neat crocodile of identically-dressed small children. Even on trips where we only take Sixers & Seconders, so have 8 Brownies, we still get people who will go through rather than round. I tend to hold hands with a couple of the smallest when we're out to make sure they don't get knocked down by adults charging through.
When I was at university I helped at a Unit where the Brownies were really NOT so nice. They were incredibly spoiled & entitled & until I showed up none of the Leaders really tried to challenge that. Finding they had to say please if I was giving things out & that if they didn't then say thank-you I'd take whatever it was back was a serious shock. But it got them to say it. Their behaviour was appalling though, purely through being utterly indulged.
I know that The Youth Of Today have always been a concern, but the general trend towards more selfish behaviour & people getting away with being ruder certainly seems to hold up. Children can certainly get away with behaving worse at school/with their teachers now than they could when I was still there, 15 years ago. University students (& their parents) have increasingly ridiculous ideas about what they're "entitled" too (which seems to boil down to "being spoonfed a degree by some poor lecturer who they seem to think is twiddling their thumbs when not in a lecture theatre"). People then think they're entitled to behave as they like in their workplace & that they're victims of bullying when told otherwise. Parents think their prams/buggies are more entitled to be in the wheelchair space than, um, a wheelchair. Some people apparently feel entitled to use Blue Badge spaces despite not having a sodding badge - or to abuse a friend/relative's badge.
I agree with PPs who suggest the compensation culture has fostered the entitlement one. The rise of social media, enabling people to sound off about their views has probably helped too - echo chambers of entitlement resonating ever louder...